Linie lotnicze
| Linia | IATA | ICAO | Kraj |
|---|---|---|---|
| Wizz Air UK | W9 | WUK | Wielka Brytania |
| Wondair | – | WNR | Hiszpania |
| Woodgate Aviation | – | CWY | Wielka Brytania |
| World Atlantic Airlines | K8 | WAL | Stany Zjednoczone |
| World Cargo Airlines | 3G | GSB | Malezja |
| World Experience Airline | W1 | – | Kanada |
| World Scale Airlines | W3 | WSS | Stany Zjednoczone |
| World2Fly | 2W | WFL | Hiszpania |
| Wright Air Service | 8V | WRF | Stany Zjednoczone |
| XAIR USA | XA | XAU | Stany Zjednoczone |
| Xinjiang General Aviation | – | XTH | Chiny |
XOJET
|
– | XOJ | Stany Zjednoczone |
| XPTO | XP | XPT | Portugalia |
| Yamal Airlines | YC | LLM | Rosja |
Yanair
|
YE | ANR | Ukraina |
| Yangon Airways Ltd. | YH | – | Mjanma |
| Yas Air | – | MND | Iran |
| Yellowstone Club Private Shuttle | Y1 | – | Stany Zjednoczone |
| Yellowtail | YE | YEL | Stany Zjednoczone |
| Yemenia | IY | IYE | Jemen |
| YES Airways | – | YEP | Polska |
| Yeti Airlines | YT | NYT | Nepal |
| Ying'an Airlines | YI | AYE | Chiny |
| YTO Cargo Airlines | YG | HYT | Chiny |
| Yunnan Airlines | 3Q | CYH | Chiny |
| Yute Commuter Service | K2 | TUD | Stany Zjednoczone |
| Yuzhmashavia | 2N | UMK | Ukraina |
| Z Air | 7Z | EZR | – |
| ZABAIKAL AIRLINES | Z6 | ZTT | Rosja |
| Zabaykalskii Airlines | ZP | ZZZ | Rosja |
| Zagros Airlines | ZO | IZG | Iran |
| Zagrosjet | Z4 | GZQ | Irak |
| Zambezi Airlines (ZMA) | ZJ | – | Zambia |
| Zambia Airways | ZN | AZB | Zambia |
| Zambia Skyways | K8 | ZAK | Zambia |
| ZanAir | B4 | TAN | Tanzania |
| Zapolyarie Airlines | – | PZY | Rosja |
| Zenith International Airline | ZN | ZNA | Tajlandia |
| Zhetysu | – | JTU | Kazachstan |
| Zhezkazgan Air | – | KZH | Kazachstan |
| Zimex Aviation | XM | IMX | Szwajcaria |
| ZIPAIR Tokyo | ZG | TZP | Japonia |
| Zoom Air | ZO | ZOA | Indie |
| Zorex Air Transport | – | ORZ | Hiszpania |
| Zz | ZZ | – | Belgia |
| Псковавиа | – | PKV | Rosja |